of

The local high school had 1,000 bottles of water on hand. The school issued 4

the supply to the 9th grade, ş of the supply to the 10th grade, and 3 of the supply

to the 11th grade. How many bottles remained for the 12th grade?

The local high school had 1,000 bottles of water on hand. The school issued 4

the supply to the 9th grade, ş of the supply to the 10th grade, and 3 of the supply

to the 11th grade. How many bottles remained for the 12th grade?

Answer: the 12th graders get 150 bottleshow did i get 150?:we know the total amount is 1,000 bottles of water

since 9th gradersgot 1/4 of the bottles. 1/4 of 1,000 is 25010th graders:1/5 of 1,000 is 20011th graders:2/5 of 1,000 is 400now we ADD all of the sums together: 250+200+400 (doesnt matter which order but do go in order to not confuse yourself) the total should be 850.

FINALLYwe subtract 1,000 – 850 = 150 bottles that are left for the 12th graders.